R5C2 can only be <5>
R8C5 can only be <7>
R5C8 can only be <2>
R9C2 can only be <9>
R5C3 can only be <3>
R5C7 can only be <8>
R2C5 can only be <5>
R9C4 can only be <4>
R1C2 can only be <1>
R9C6 can only be <3>
R6C4 can only be <5>
R7C5 can only be <9>
R1C8 can only be <5>
R1C4 can only be <7>
R9C8 can only be <1>
R3C7 can only be <4>
R2C1 can only be <7>
R3C5 can only be <8>
R1C7 can only be <2>
R4C1 can only be <2>
R6C9 can only be <3>
R4C4 can only be <6>
R4C9 can only be <5>
R5C5 can only be <4>
R1C3 can only be <8>
R5C4 can only be <9>
R1C9 can only be <9>
R7C7 can only be <6>
R3C9 can only be <7>
R2C9 can only be <1>
R3C3 can only be <5>
R4C5 can only be <3>
R1C6 can only be <4>
R4C6 can only be <8>
R6C1 can only be <4>
R8C1 can only be <5>
R8C9 can only be <2>
R9C9 can only be <8>
R5C6 can only be <7>
R6C5 can only be <1>
R6C6 can only be <2>
R7C1 can only be <8>
R9C7 can only be <5>
R3C1 can only be <9>
R9C1 can only be <6>
R9C3 can only be <7>
R7C9 can only be <4>
R1C1 can only be <3>
R7C3 can only be <2>